Isle Royale Rainfall Forecast

Today 8 Jul
70%
Wed 9 Jul
15%
Thu 10 Jul
No Rain
Fri 11 Jul
40%
Sat 12 Jul
60%
Sun 13 Jul
20%
Mon 14 Jul
20%

Isle Royale Rainfall Statistics

July Rainfall

Copper Harbor (58.4 miles)

Total Rainfall 2025
12in
Daily Average 2025
0.1in
Wettest Day 27 June, 2025
0.9in
Wet Days 2025
76/189 (40%)
Total Rainfall June
1.9in
Daily Average June
0.1in
Wettest Day 27 June, 2025
0.9in
Wet Days June
7/30 (23%)
Total Rainfall July
0.4in
Daily Average July
0.1in
Wettest Day 5 July, 2025
0.4in
Wet Days July
1/8 (13%)

Climate (2010–Present)

Copper Harbor (58.4 miles)

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Annual Average 2020–2024
26.8in
Monthly Average 2020–2025
2.3in
Daily Average 2020–2025
0.1in
Wettest Day 23 July, 2021
2.7in

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